To Copy Level Attributes from the Open File to Attached References

Select a level from level list of the open file.
Right-click in the level list.
A pop-up menu opens.
Select Copy from the menu.
Select a reference attachment(s) from the tree.
Right-click in the level list.
A pop-up menu opens.
Select Paste from the menu.
The attributes in the reference attachment(s) are copied to match the level in the open file.